public class Shuffle1 {
	public static void main(String[] args) {

		int x = 3;

		while ( x > 0 ) {

			if ( x > 2 ) {
				System.out.print("a");
			}

			x = x - 1;
			System.out.print("-");

			if ( x == 2 ) {
				System.out.print("b c");
			}

			x = x - 1;
			System.out.print("-");

			if ( x == 1 ) {
				System.out.print("d");
				x = x - 1;
			}
		}
	}
}
